MasterPro feather light body filler

TractorTrev

New User
Is there a better way to apply skim coat without it drying before applying even a small amount? 'OR' Do I have to mix a tiny bit at a time? I am not mixing allot at a time but seems like allot of waist. I am mixing the very least amount of hardener possible. Any tips out there?
Thanks,
Tractor Trev
 

When you look at videos you can see that the pros spread it out pretty fast. If you can't use less activator use more filler.
 

Thanks for replying Showcrop! I'm not much of a youtube kind of guy but maybe I should watch a few how-to videos on autobody. I restore older tractors and just love every minute of every tractor. I am working on the sheet metal of a 1958 Minneapolis Moline 5 star that is really pitted. Normally I wouldn't have to bother with this step after media blast but this one was treated rough and never put away properly.

TractorTrev
 
Whatever I have tried it never comes out close to the amount needed--I do the best I can and either mix more or toss it. Filler is the least I spend on the tractor anyway.
 
I add a tiny amount of fiberglass resin. For me it goes on smoother and takes longer to set up. It does make it a little harder to sand.
 
As they have said djust the hardener percentage to suit the temps in the shop and your speed of application,,, within reason. Too little and it never hardens properly however a 5 minute pot life will be OK in my experience, that is to the point it is noticeably getting stiff. As Dick said a bit of epoxy resin will help but dont get carried away as sanding will become difficult. Also keep a good supply of those plastic applicators around. The used ones are good for roughing things in but when you get to the point of skimming you need a brand new one. I hate sanding putty and have taken to getting rid of the bulk of it with a sure form rasp when it is at the hard dough stage. I also try to get the best skim possible. I have been experimenting with the flexible dry wall finishing trowels made of steel so as to eliminate the imperfections caused by the edge of most plastic applicator tools. Requires a modified technique but results are promising.
 

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